799663458816 has 240 divisors, whose sum is σ = 2430984853440. Its totient is φ = 252355461120.

The previous prime is 799663458793. The next prime is 799663458823. The reversal of 799663458816 is 618854366997.

799663458816 is a `hidden beast` number, since 7 + 9 + 9 + 6 + 6 + 34 + 588 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 220716781 + ... + 220720403.

It is an arithmetic number, because the mean of its divisors is an integer number (10129103556).

Almost surely, 2^799663458816 is an apocalyptic number.

799663458816 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 799663458816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1215492426720).

799663458816 is an abundant number, since it is smaller than the sum of its proper divisors (1631321394624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

799663458816 is a wasteful number, since it uses less digits than its factorization.

799663458816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6187 (or 6168 counting only the distinct ones).

The product of its digits is 470292480, while the sum is 72.

The spelling of 799663458816 in words is "seven hundred ninety-nine billion, six hundred sixty-three million, four hundred fifty-eight thousand, eight hundred sixteen".